Panax Ginseng: Clinical Evidence & Substantiation Summary

Clinical Trials
58
Strongest Evidence
Energy & Cognition
Typical Dosage
200–400 mg/day (standardised extract)
Common Forms
Standardised root extract (4–7% ginsenosides)

What Is Panax Ginseng?

Panax ginseng (Korean/Asian ginseng) is one of the most widely used adaptogens with thousands of years of traditional use. Its active compounds, ginsenosides, have diverse pharmacological effects on energy, cognitive function, immune modulation, and sexual health.

Mechanism of action: Ginsenosides interact with multiple molecular targets including steroid hormone receptors, nitric oxide synthase, and ion channels. They modulate the HPA axis, enhance cholinergic neurotransmission, and stimulate nitric oxide production for vasodilation.

Clinical Evidence Summary

Below are 5 key clinical studies on Panax Ginseng. Nutra Comp analyses 58+ studies in its full clinical evidence report.

Systematic review2018PMID: 30411529

Panax ginseng and cognitive performance: a systematic review

Population: 10 RCTs

Key finding: Ginseng supplementation improved working memory and reaction time in healthy adults (p<0.05).

Meta-analysis2017PMID: 29099763

Ginseng and fatigue reduction: meta-analysis

Population: 12 RCTs

Key finding: Ginseng significantly reduced fatigue scores compared with placebo (SMD -0.33, p=0.002).

Korean red ginseng and immune function

Population: 100 healthy adults

Key finding: Red ginseng (3 g/day for 12 weeks) significantly increased NK cell activity and reduced cold/flu incidence (p<0.05).

Meta-analysis2015PMID: 26362110

Ginseng and erectile function: a meta-analysis

Population: 7 RCTs, 349 men

Key finding: Korean red ginseng significantly improved erectile function scores (IIEF) vs. placebo (WMD: 3.0, p=0.007).

Systematic review2020PMID: 32268543

Panax ginseng and blood sugar: systematic review

Population: 8 RCTs

Key finding: Ginseng supplementation modestly reduced fasting glucose and improved insulin sensitivity in at-risk populations.

Evidence-Based Structure–Function Claims

Sample FDA-compliant structure–function claims generated by Nutra Comp, each linked to clinical evidence and scored for confidence.

8
Supports healthy energy levels and reduces occasional fatigue
Category: Energy · Confidence: 8/10
7
Supports cognitive function and mental clarity
Category: Cognitive · Confidence: 7/10
7
Supports healthy immune system function
Category: Immune · Confidence: 7/10

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Key Terms

Randomised Controlled Trial (RCT)Standardised ExtractPlacebo Effect

Frequently Asked Questions

Is Panax ginseng FDA approved?

Panax ginseng is sold as a dietary supplement under DSHEA. It does not require FDA approval. It should not be confused with American ginseng (P. quinquefolius) or Siberian ginseng (Eleutherococcus), which are different species.

What are the most studied benefits?

The strongest evidence supports ginseng for fatigue reduction, cognitive performance, immune function, and sexual health in men.

What dosage is used in studies?

Most studies use 200–400 mg/day of extract standardised to 4–7% ginsenosides. Korean red ginseng studies often use 1–3 g/day of the whole root preparation.

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